Number 7 in the DOS GUI series.
This is the Ozone Phoenix GUI from 2007, version 5.8.0, a nice looking but very restricted GUI.
More an exercise in eye candy rather than function.
While it installs on DOS it will crash - every time - if you try to execute a DOS program even though it has the option to execute DOS binaries.
It has a few apps installed in it's own format but not being able to run DOS apps makes it effectively unusable.
I wonder what script kiddies were smoking back in the day.
Comes with mouse support and several configuration options, although several of these won't run.
A reasonable file manager but, all up, more of a look-at-me demo than anything else.
Which seems to be a theme in several of these GUI's I've tried so far.
Perhaps back in the day tech colleges had a thing for "Course #101 - Build-a-GUI".
As well as the VHD I've uploaded an ISO with the install files - just drag'n'drop the files to a directory called "Ozone" on C: no setup needed.
The VHD was created using VirtualBox 6.1.26.
To run, cd to C:\Ozone and enter "main".
For my pick of the best 11 DOS GUIs I've found so far, see my other post here:
https://archive.org/details/DOS-GUI-The-Best-11-So-Far
And . . . as you're interested in DOS GUIs, here are a some GUI related links:
http://qbasicgui.datacomponents.net/
http://theguiblog.com/guipedia.php
http://toastytech.com/guis/index.html
https://guidebookgallery.org/guis
https://www.digibarn.com/collections/screenshots/